EP1621643A4 - Welded joint of tempered martensite based heat-resistant steel - Google Patents

Welded joint of tempered martensite based heat-resistant steel

Info

Publication number
EP1621643A4
EP1621643A4 EP04724727A EP04724727A EP1621643A4 EP 1621643 A4 EP1621643 A4 EP 1621643A4 EP 04724727 A EP04724727 A EP 04724727A EP 04724727 A EP04724727 A EP 04724727A EP 1621643 A4 EP1621643 A4 EP 1621643A4
Authority
EP
European Patent Office
Prior art keywords
welded joint
resistant steel
tempered martensite
based heat
martensite based
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP04724727A
Other languages
German (de)
French (fr)
Other versions
EP1621643B1 (en
EP1621643A1 (en
Inventor
Masaaki Tabuchi
Hirokazu Okada
Masayuki Kondo
Susumu Tsukamoto
Fujio Abe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Nippon Steel Corp
National Institute for Materials Science
Original Assignee
Mitsubishi Heavy Industries Ltd
National Institute for Materials Science
Sumitomo Metal Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd, National Institute for Materials Science, Sumitomo Metal Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP1621643A1 publication Critical patent/EP1621643A1/en
Publication of EP1621643A4 publication Critical patent/EP1621643A4/en
Application granted granted Critical
Publication of EP1621643B1 publication Critical patent/EP1621643B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/22—Ferrous alloys, e.g. steel alloys containing chromium with molybdenum or tungsten
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/24—Ferrous alloys, e.g. steel alloys containing chromium with vanadium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/26—Ferrous alloys, e.g. steel alloys containing chromium with niobium or tantalum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
    • C22C38/30—Ferrous alloys, e.g. steel alloys containing chromium with cobalt

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Steel (AREA)
  • Arc Welding In General (AREA)
  • Butt Welding And Welding Of Specific Article (AREA)
EP04724727.5A 2003-03-31 2004-03-31 Welded joint of tempered martensite based heat-resistant steel Expired - Lifetime EP1621643B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003095742A JP4188124B2 (en) 2003-03-31 2003-03-31 Welded joints of tempered martensitic heat-resistant steel
PCT/JP2004/004599 WO2004087979A1 (en) 2003-03-31 2004-03-31 Welded joint of tempered martensite based heat-resistant steel

Publications (3)

Publication Number Publication Date
EP1621643A1 EP1621643A1 (en) 2006-02-01
EP1621643A4 true EP1621643A4 (en) 2009-04-01
EP1621643B1 EP1621643B1 (en) 2016-11-09

Family

ID=33127448

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04724727.5A Expired - Lifetime EP1621643B1 (en) 2003-03-31 2004-03-31 Welded joint of tempered martensite based heat-resistant steel

Country Status (6)

Country Link
US (1) US7785426B2 (en)
EP (1) EP1621643B1 (en)
JP (1) JP4188124B2 (en)
KR (1) KR20060011946A (en)
CN (1) CN100489136C (en)
WO (1) WO2004087979A1 (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7540402B2 (en) * 2001-06-29 2009-06-02 Kva, Inc. Method for controlling weld metal microstructure using localized controlled cooling of seam-welded joints
WO2007091535A1 (en) * 2006-02-06 2007-08-16 Babcock-Hitachi Kabushiki Kaisha Ferritic heat-resistant steel
CN100464923C (en) * 2006-06-09 2009-03-04 浙江省火电建设公司 P92 steel welding process
JP5463527B2 (en) * 2008-12-18 2014-04-09 独立行政法人日本原子力研究開発機構 Welding material made of austenitic stainless steel, stress corrosion cracking preventive maintenance method and intergranular corrosion preventive maintenance method using the same
JP4903918B1 (en) * 2010-06-07 2012-03-28 新日本製鐵株式会社 Ultra high strength welded joint and manufacturing method thereof
CN102758141A (en) * 2011-04-25 2012-10-31 中国科学院金属研究所 Novel nitride-reinforced martensite heat-resisting steel
CN102383062A (en) * 2011-11-03 2012-03-21 安徽荣达阀门有限公司 Steel material and preparation method thereof
CN102489842B (en) * 2011-12-07 2013-05-22 鞍山锅炉厂有限公司 Argon tungsten-arc welding process for pearlite heat-resistant steel pipe and austenitic heat-resistant steel pipe
KR101448473B1 (en) * 2012-12-03 2014-10-10 현대하이스코 주식회사 Tailor welded blnk and hot stamping parts using the same
JP6388276B2 (en) * 2013-05-22 2018-09-12 新日鐵住金株式会社 Heat resistant steel and manufacturing method thereof
JP6399509B2 (en) * 2014-07-02 2018-10-03 新日鐵住金株式会社 High strength ferritic heat resistant steel structure and method for producing the same
RU2598725C2 (en) * 2014-11-28 2016-09-27 Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ") Heat-resistant steel of martensitic class and preparation method thereof
JP6515276B2 (en) * 2015-01-14 2019-05-22 日本製鉄株式会社 High strength ferritic heat resistant steel structure and method of manufacturing the same
US11090755B2 (en) 2015-12-18 2021-08-17 Nippon Steel Corporation Welding material for ferritic heat-resistant steel, welded joint for ferritic heat-resistant steel, and method for producing welded joint for ferritic heat-resistant steel
ES2846875T3 (en) * 2016-07-12 2021-07-30 Vallourec Tubes France Heat resistant high chromium martensitic seamless steel tube or pipe with a combination of high creep resistance and oxidation resistance
CN106735777B (en) * 2016-12-08 2019-09-24 苏州热工研究院有限公司 The welding method for preventing SA335-T/P92 steel weld heat-affected zone granular ferrite from generating
RU2655496C1 (en) * 2017-05-18 2018-05-28 Федеральное государственное автономное образовательное учреждение высшего образования "Белгородский государственный национальный исследовательский университет" (НИУ "БелГУ") Heat-resistant steel of martensitic class
CN107130185A (en) * 2017-06-13 2017-09-05 中国科学院合肥物质科学研究院 A kind of resistance to irradiation martensite steel of low activation of new dispersion-strengtherning and its Technology for Heating Processing
CN107854842A (en) * 2017-12-16 2018-03-30 苏州胤宗智能科技有限公司 A kind of cold-resistant two-player swing and its processing technology
CN110629110A (en) * 2018-06-25 2019-12-31 宝山钢铁股份有限公司 Steel for ultra-supercritical thermal power generating unit with steam corrosion oxidation resistance and good high-temperature durability and preparation method thereof
CN108588351B (en) * 2018-07-19 2020-05-26 西京学院 Heat treatment process for improving tempering brittleness of martensite heat-resistant steel
JP7140207B2 (en) 2018-12-05 2022-09-21 日本製鉄株式会社 METHOD FOR MANUFACTURING FERRITIC HEAT-RESISTANT STEEL WELD JOINT
JP7502041B2 (en) 2019-02-21 2024-06-18 株式会社神戸製鋼所 Welding materials for high Cr ferritic heat-resistant steel
KR20210137184A (en) 2019-03-19 2021-11-17 닛폰세이테츠 가부시키가이샤 Ferritic heat-resistant steel
JP7376767B2 (en) * 2019-07-19 2023-11-09 日本製鉄株式会社 Ferritic heat-resistant steel dissimilar welded joint and its manufacturing method
US11772207B2 (en) * 2019-09-20 2023-10-03 Lincoln Global, Inc. High chromium creep resistant weld metal for arc welding of thick walled steel members
US11772206B2 (en) * 2019-09-20 2023-10-03 Lincoln Global, Inc. High chromium creep resistant weld metal for arc welding of thin walled steel members
CN111139409A (en) * 2020-01-21 2020-05-12 上海电气电站设备有限公司 Heat-resistant cast steel and preparation method and application thereof
CN111843285B (en) * 2020-07-08 2021-12-07 武汉大学 Welding wire for high-grade martensitic heat-resistant steel with anti-aging embrittlement welding line and application thereof
CN114635023B (en) * 2020-12-16 2023-07-18 宝武特种冶金有限公司 Production method of martensitic heat-resistant steel blank
CN116417099B (en) * 2023-04-04 2024-01-26 哈尔滨工业大学 Simulation method for nucleation and growth of holes at grain boundary in creep process of martensitic steel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02294452A (en) * 1989-05-02 1990-12-05 Nippon Steel Corp Ferritic heat resisting steel excellent in toughness in welded bond zone
US5415706A (en) * 1993-05-28 1995-05-16 Abb Management Ag Heat- and creep-resistant steel having a martensitic microstructure produced by a heat-treatment process
EP0691416A1 (en) * 1994-06-13 1996-01-10 The Japan Steel Works, Ltd. Heat resisting steels
EP0703301A1 (en) * 1994-09-20 1996-03-27 Sumitomo Metal Industries, Ltd. High chromium ferritic heat-resistant steel
JP2001192761A (en) * 2000-01-11 2001-07-17 Nippon Steel Corp Ferritic heat resistant steel sheet excellent in creep strength and toughness of base metal and welded joint and producing method therefor

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2586042A (en) * 1951-04-06 1952-02-19 United States Steel Corp Low-alloy high-yield strength weldable steel
JPS58110661A (en) * 1981-12-25 1983-07-01 Hitachi Ltd Heat resistant steel
JP3237137B2 (en) 1991-08-12 2001-12-10 住友金属工業株式会社 High chromium ferritic heat-resistant steel with small decrease in strength of weld heat affected zone
JP3157297B2 (en) 1992-08-24 2001-04-16 新日本製鐵株式会社 Ferritic heat-resistant steel with low softening of welding heat affected zone
US5650024A (en) * 1993-12-28 1997-07-22 Nippon Steel Corporation Martensitic heat-resisting steel excellent in HAZ-softening resistance and process for producing the same
JP3315800B2 (en) * 1994-02-22 2002-08-19 株式会社日立製作所 Steam turbine power plant and steam turbine
JP3418884B2 (en) 1994-09-20 2003-06-23 住友金属工業株式会社 High Cr ferritic heat resistant steel
US5716465A (en) * 1994-09-30 1998-02-10 Nippon Steel Corporation High-corrosion-resistant martensitic stainless steel having excellent weldability and process for producing the same
ATE175728T1 (en) * 1995-04-12 1999-01-15 Mitsubishi Heavy Ind Ltd HIGH STRENGTH, HIGH HEAT RESISTANT STEEL AND METHOD FOR THE PRODUCTION THEREOF
JP3301284B2 (en) 1995-09-04 2002-07-15 住友金属工業株式会社 High Cr ferritic heat resistant steel
JP3354832B2 (en) * 1997-03-18 2002-12-09 三菱重工業株式会社 High toughness ferritic heat-resistant steel
JP3434180B2 (en) 1997-09-30 2003-08-04 株式会社神戸製鋼所 Ferritic heat-resistant steel with excellent creep characteristics in the weld heat affected zone
JP2001192776A (en) 1999-10-29 2001-07-17 Dainippon Printing Co Ltd Extension type shadow mask
JP2001279391A (en) * 2000-03-30 2001-10-10 Sumitomo Metal Ind Ltd Ferritic heat resisting steel
JP2002069588A (en) 2000-08-29 2002-03-08 Sumitomo Metal Ind Ltd Ferritic heat-resisting steel
JP4614547B2 (en) * 2001-01-31 2011-01-19 独立行政法人物質・材料研究機構 Martensitic heat resistant alloy with excellent high temperature creep rupture strength and ductility and method for producing the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02294452A (en) * 1989-05-02 1990-12-05 Nippon Steel Corp Ferritic heat resisting steel excellent in toughness in welded bond zone
US5415706A (en) * 1993-05-28 1995-05-16 Abb Management Ag Heat- and creep-resistant steel having a martensitic microstructure produced by a heat-treatment process
EP0691416A1 (en) * 1994-06-13 1996-01-10 The Japan Steel Works, Ltd. Heat resisting steels
EP0703301A1 (en) * 1994-09-20 1996-03-27 Sumitomo Metal Industries, Ltd. High chromium ferritic heat-resistant steel
JP2001192761A (en) * 2000-01-11 2001-07-17 Nippon Steel Corp Ferritic heat resistant steel sheet excellent in creep strength and toughness of base metal and welded joint and producing method therefor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2004087979A1 *

Also Published As

Publication number Publication date
EP1621643B1 (en) 2016-11-09
CN100489136C (en) 2009-05-20
WO2004087979A1 (en) 2004-10-14
EP1621643A1 (en) 2006-02-01
CN1784503A (en) 2006-06-07
KR20060011946A (en) 2006-02-06
JP2004300532A (en) 2004-10-28
US7785426B2 (en) 2010-08-31
US20060237103A1 (en) 2006-10-26
JP4188124B2 (en) 2008-11-26

Similar Documents

Publication Publication Date Title
EP1621643A4 (en) Welded joint of tempered martensite based heat-resistant steel
EP1645355A4 (en) Austenitic steel weld joint
EP1559796A4 (en) Method of increasing toughness of heat-affected part of steel product welded joint
DE602004000140D1 (en) Stainless austenitic steel
EP1652950A4 (en) Martensitic stainless steel
HK1074060A1 (en) Cold-worked steels with packet-lath martensite/austenite microstructure
AU2003296970A1 (en) Cr-w-v bainitic/ferritic steel compositions
EP1698711A4 (en) Ferritic cr-containing steel
ZA200704668B (en) An austenitic steel and steel product
GB2437374B (en) Recovery of steel from contaminated scrap
EP1304394A4 (en) Ferritic heat-resistant steel
SI1459833T1 (en) Method of friction welding
EP1461466A4 (en) Nano-compsite martensitic steels
EP1826285A4 (en) Martensitic stainless steel
EP1914325A4 (en) Continuous heat treatment furnace and utilizing the same, metal pipe and method of heat treatment
EP1840237A4 (en) Martensitic stainless steel pipe for oil well
EP1918388A4 (en) High-strength steel pipe and method of heat treatment therefor
EP1664356A4 (en) Post weld heat treatment for chemically stabilized austenitic stainless steel
EP1484422A4 (en) Sulfur-containing free-cutting steel
GB2390125B (en) Joint construction of column member steel pipes
GB2448096B (en) Joining method of high carbon steel for endless hot rolling and the apparatus therefor
GB2403174B (en) Steel rails
ZA200702959B (en) Metallurgical furnace
EP1666621A4 (en) Hot forged non-heat treated steel for induction hardening
GB0300687D0 (en) Quenching method and furnace

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20051019

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB

DAX Request for extension of the european patent (deleted)
RBV Designated contracting states (corrected)

Designated state(s): DE GB

RBV Designated contracting states (corrected)

Designated state(s): DE GB

A4 Supplementary search report drawn up and despatched

Effective date: 20090227

17Q First examination report despatched

Effective date: 20090922

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: NATIONAL INSTITUTE FOR MATERIALS SCIENCE

Owner name: NIPPON STEEL & SUMITOMO METAL CORPORATION

Owner name: MITSUBISHI HEAVY INDUSTRIES, LTD.

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602004050250

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: C22C0038000000

Ipc: C22C0038020000

RIC1 Information provided on ipc code assigned before grant

Ipc: C22C 38/04 20060101ALI20160331BHEP

Ipc: C22C 38/02 20060101AFI20160331BHEP

Ipc: C22C 38/26 20060101ALI20160331BHEP

Ipc: C22C 38/22 20060101ALI20160331BHEP

Ipc: C22C 38/30 20060101ALI20160331BHEP

Ipc: C22C 38/24 20060101ALI20160331BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160601

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004050250

Country of ref document: DE

Owner name: MITSUBISHI HEAVY INDUSTRIES, LTD., JP

Free format text: FORMER OWNERS: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TSUKUBA, IBARAKI, JP; SUMITOMO METAL INDUSTRIES, LTD., OSAKA, JP; MITSUBISHI HEAVY INDUSTRIES, LTD., TOKYO, JP

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004050250

Country of ref document: DE

Owner name: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TSUK, JP

Free format text: FORMER OWNERS: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TSUKUBA, IBARAKI, JP; SUMITOMO METAL INDUSTRIES, LTD., OSAKA, JP; MITSUBISHI HEAVY INDUSTRIES, LTD., TOKYO, JP

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004050250

Country of ref document: DE

Owner name: NIPPON STEEL CORPORATION, JP

Free format text: FORMER OWNERS: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TSUKUBA, IBARAKI, JP; SUMITOMO METAL INDUSTRIES, LTD., OSAKA, JP; MITSUBISHI HEAVY INDUSTRIES, LTD., TOKYO, JP

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602004050250

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602004050250

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20170810

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20180426 AND 20180502

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602004050250

Country of ref document: DE

Representative=s name: DEHNS, GB

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004050250

Country of ref document: DE

Owner name: MITSUBISHI HEAVY INDUSTRIES, LTD., JP

Free format text: FORMER OWNERS: MITSUBISHI HEAVY INDUSTRIES, LTD., TOKYO, JP; NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TSUKUBA-SHI, IBARAKI, JP; NIPPON STEEL & SUMITOMO METAL CORPORATION, TOKYO, JP

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004050250

Country of ref document: DE

Owner name: NIPPON STEEL CORPORATION, JP

Free format text: FORMER OWNERS: MITSUBISHI HEAVY INDUSTRIES, LTD., TOKYO, JP; NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TSUKUBA-SHI, IBARAKI, JP; NIPPON STEEL & SUMITOMO METAL CORPORATION, TOKYO, JP

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004050250

Country of ref document: DE

Owner name: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TSUK, JP

Free format text: FORMER OWNERS: MITSUBISHI HEAVY INDUSTRIES, LTD., TOKYO, JP; NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TSUKUBA-SHI, IBARAKI, JP; NIPPON STEEL & SUMITOMO METAL CORPORATION, TOKYO, JP

Ref country code: DE

Ref legal event code: R082

Ref document number: 602004050250

Country of ref document: DE

Representative=s name: REITSTOETTER KINZEBACH, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602004050250

Country of ref document: DE

Representative=s name: REITSTOETTER KINZEBACH, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004050250

Country of ref document: DE

Owner name: NIPPON STEEL CORPORATION, JP

Free format text: FORMER OWNERS: MITSUBISHI HEAVY INDUSTRIES, LTD., TOKYO, JP; NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TSUKUBA-SHI, IBARAKI, JP; NIPPON STEEL CORPORATION, TOKYO, JP

Ref country code: DE

Ref legal event code: R081

Ref document number: 602004050250

Country of ref document: DE

Owner name: NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TSUK, JP

Free format text: FORMER OWNERS: MITSUBISHI HEAVY INDUSTRIES, LTD., TOKYO, JP; NATIONAL INSTITUTE FOR MATERIALS SCIENCE, TSUKUBA-SHI, IBARAKI, JP; NIPPON STEEL CORPORATION, TOKYO, JP

Ref country code: DE

Ref legal event code: R082

Ref document number: 602004050250

Country of ref document: DE

Representative=s name: REITSTOETTER KINZEBACH, DE

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20210319

Year of fee payment: 18

Ref country code: GB

Payment date: 20210324

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602004050250

Country of ref document: DE

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20220331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220331

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20221001